CVE-2023-6266Known exploitationNetwork attack vector

Unauthenticated backup disclosure via insufficient path validation

Published Jan 11, 2024 · Updated Apr 8, 2026

Information disclosure in Inisev Backup Migration 1.3.6 and earlier allows remote attackers to download site backup files. The BMI_BACKUP branch of handle_downloading serves a requested backup after insufficient path and file validation. No authentication is required; reachable sites with locally stored backups expose archives containing database credentials, user passwords, and personal data.

CVSS severity7.5
High
EPSS probability2.05%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Inisev Backup Migration 1.3.6 and earlier allows remote attackers to download site backup files. The BMI_BACKUP branch of handle_downloading serves a requested backup after insufficient path and file validation. No authentication is required; reachable sites with locally stored backups expose archives containing database credentials, user passwords, and personal data.

The record

CVE
CVE-2023-6266
Published
Jan 11, 2024
Updated
Apr 8, 2026
Vendor
Copy Delete Posts
Product
Backup Migration
Classifications
CWE-552, CWE-200, T1190, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.3.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Copy Delete Posts · Backup Migrationversion=0 <=1.3.6

Published CVSS scores

7.5WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-552Files or Directories Accessible to External Parties
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1190Exploit Public-Facing Application
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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